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View Full Version : Dark Matter is Tugging at a Galactic Cluster



Fraser
2005-Sep-09, 08:43 AM
SUMMARY: Astronomers theorize that most of the mass in the Universe is dark matter; it's invisible and detectable only by the pull of its gravity on objects. This dark matter is in long filaments, and galaxy clusters form where these filaments intersect. NASA's Chandra X-Ray Observatory has found a hot gas cloud hundreds of thousands of light-years across in the the Fornax galaxy cluster is collapsing towards an invisible centre of gravity. Computer simulations have accurately predicted this kind of interaction between galaxy clusters and filaments of dark matter, so this discovery will give astronomers a chance to understand the process better.

View full article (http://www.universetoday.com/am/publish/dark_matter_tugging_galactic_supercluster.html)
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